Research on the system dynamics model of coal mine safety in production

At present, the coal mine safety problems have seriously restricted the development in china's coal industry. The coal mine is a kind of comprehensive multi-process and multi-links enterprise with the characteristics of complex production process, the frequently changed operating location, the adverse environment. The coal mine safety in production has obvious complexity. The system dynamics (SD) is to establish the system dynamic model on the basis of feedback control theory and carries on the simulation experiment with the aid of computers. This article takes the system dynamics as a method that can research the complex problem effectively and takes the quota about coal mine accident rate, the miner,'s death rate per million tons coal, the investment for safety, equipment level technically, staffs safety awareness, safety management level, safety training and inspection intensity, geological conditions, raw coal output, profits, overall investment and so on as the main research objects to establish the system dynamicsi model for the coal mine safety in production. This model reflects all restriction factors and its reciprocity in the interior of coal mine safety in production systematically with an audio-visual way, it has important instructional significance for us to have a correct understanding of rules for coal mine safety in production, to improve the level of coal mine safety in production, to reduce the occurrence of coal mine accident.